We need a NP435 guru
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We need a NP435 guru
I am about to start rebuilding an NP435 for my auto to manual conversion on my '79 supercab. I am having a hard time finding detailed information on the tips and tricks to building a hard working long lasting transmission. I have rebuilt the NP205 transfer case and I expect it to be very similar but I was hoping someone here did this day in and day out for 30 years on this exact transmission and knew the best part brands and some great unknown tricks to getting the most out it. Novak conversions has a rebuild kit with bearings and gaskets for $189.00. Bronco Graveyard has one for $169.00 but neither list who makes the bearings - both look like they were made in Japan - not sure if that is o.k. or not. Timken is the most known name but maybe others are just as good. Any thoughts?
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From: Pittsburgh
I haven't done this professionally, but i've built a couple 435's and t-18's. I don't know if they're a national company, but i get my kits through transtar transmission parts (all the tranny shops around St. Louis use them). A kit for a T-18 runs about $130 after all is said and done, the 435 was a little more. Of all the kits I've gotten they have one of two bearings. Some are Timken and others have "Germany" etched into them, both good enough names for me 
The 435 is a relatively simple rebuild if you're handy with tools and have access to a press (might need it, might not).
Justin
The 435 is a relatively simple rebuild if you're handy with tools and have access to a press (might need it, might not).Justin
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From: Colorado
Re: We need a NP435 guru
Originally posted by wick246
I was hoping someone here did this day in and day out for 30 years on this exact transmission
I was hoping someone here did this day in and day out for 30 years on this exact transmission
That said, my only T-case problem had been a slow leak & I've never had it apart. I'm sorry I can't help you with suggestions & tips on a rebuild.
Goodluck, though... a few here MUST have done it (professionally)... I'll be following this thread as a "refurbish" is on my wish list (main gasket, bearings & seals).
Broncr
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From: Western Slope, Colorado
Not a pro but mine is still doing fine. I used the Bronco Graveyard kit because it has synchros, my 2nd gear synchro was toast. I was very satisfied with the quality. As I recall all bearings were Timken with the exception of the output shaft bearing, this was about two years ago, you might call them and see what bearings they are packaging now. I know some tips and tricks, i.e. heat the output shaft bearing in a oven (or bearing heater if you have one) and it will slip on the shaft, make sure that it is immediately seated, when it cools it will be hard to reposition it. I have some others if needed. As for a NP435 pro on this board I haven't run across them yet but have had some good responses. I would like to see a definitive answer to setting end play or a source for a real manual for this. Search NP435.
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From: santa cruz usa
NP 435
I don't mean to hijack this thread but the tranny in my 1968 F350 with 390 is starting to make ominous sounds. It is a four speed with a compound low so I am assuming it is a NP435.
I found one for sale out of a 1968 dodge but I need to confirm it will fit a F350 with a 390. I would be paying 200 dollars and shipping for it.
thanks for any info.
Karl
I found one for sale out of a 1968 dodge but I need to confirm it will fit a F350 with a 390. I would be paying 200 dollars and shipping for it.
thanks for any info.
Karl
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From: Pittsburgh
Rocky Mtn,
What part of setting the endply are you wondering about? I have the official Ford L-Series rebuild manual sitting on my shelf which completely covers the 435
Justin
What part of setting the endply are you wondering about? I have the official Ford L-Series rebuild manual sitting on my shelf which completely covers the 435
Justin
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O.K. here is the latest,
I purchased a 435 off of the internet. When it got here though it was a little different than I was expecting. The output shaft has 31 splines and is very long (the exposed portion is 14.5 " from the case to the end) and has a speedo gear on it. My old transfer case adapter sleeve is only about 8 " long. Also the old adapter sleeve bolt pattern is different than the new transmission. The lower two bolt holes are narrow on the transmission like the two wheel drive versions - they are much wider on the old sleeve. What I could make out of the tag numbers (they are very, very lightly stamped even after cleaning and polishing) are:
5?A 005 UA FE55
11 7 83 435
Casting numbers on the case are:
X03A *83*
C-13894-2
Does anyone have any information on this transmission and what its applications are?
I assume it was made in 1983 but dont know for sure...
I purchased a 435 off of the internet. When it got here though it was a little different than I was expecting. The output shaft has 31 splines and is very long (the exposed portion is 14.5 " from the case to the end) and has a speedo gear on it. My old transfer case adapter sleeve is only about 8 " long. Also the old adapter sleeve bolt pattern is different than the new transmission. The lower two bolt holes are narrow on the transmission like the two wheel drive versions - they are much wider on the old sleeve. What I could make out of the tag numbers (they are very, very lightly stamped even after cleaning and polishing) are:
5?A 005 UA FE55
11 7 83 435
Casting numbers on the case are:
X03A *83*
C-13894-2
Does anyone have any information on this transmission and what its applications are?
I assume it was made in 1983 but dont know for sure...
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From: Pittsburgh
The manual I have is the 1983?-1985 Ford L-series truck service manual. My highschool is getting Alldata so they were throwing out all the 1982 and newer service manuals as that is what Alldata covers. I just happened to flip through this L series book and it covers the T-18 and the NP 435 in its rebuild section so i snatched the book before it hit the round file (since i had both that were in need of a rebuild). All it covers is dissassembly, inspection, and reassembly but covers it all very thoroughly. I also have a 1982 truck service manual and it covers the t-18 and 435 rebuilds but not nearly in as much depth.
Justin
Justin
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"I might be mistaken, but can't you just swap tailshafts to convert a 2wd into a 4wd?"
You are close to being correct. The difference is in the transmission case itself. The 2wd and 4wd housings have different bolt patterns for the tailshaft and the sleeve between the transmission and the transfer case. I think you could do some home engineering and make it work but as long as there is a somewhat large pool of rebuildables out there it is faster and cheaper to just find the correct transmission. That may be a good aftermarket venue - to sell the tail shaft and sleeve to convert the many 2wd NP435's to 4wd married versions... If the package wasn't more than a couple of hundred dollars I would probably be ordering one right now.
You are close to being correct. The difference is in the transmission case itself. The 2wd and 4wd housings have different bolt patterns for the tailshaft and the sleeve between the transmission and the transfer case. I think you could do some home engineering and make it work but as long as there is a somewhat large pool of rebuildables out there it is faster and cheaper to just find the correct transmission. That may be a good aftermarket venue - to sell the tail shaft and sleeve to convert the many 2wd NP435's to 4wd married versions... If the package wasn't more than a couple of hundred dollars I would probably be ordering one right now.
Last edited by wick246; Nov 28, 2003 at 11:05 PM.